The 6.7L Power Stroke (2011 and up) is Ford's strong in-house diesel, and it is largely reliable when its fuel and emissions components are cared for. This complete guide covers the most important 6.7L Power Stroke issues and the parts that fix them.
CP4.2 high-pressure fuel pump
The CP4.2 runs at tight tolerances and depends on fuel lubricity; a failure can send metal downstream to the injectors and rails. Clean, well-lubricated fuel and steady supply are the best protection. Full guide: 6.7L Power Stroke CP4.2 failure.
Turbocharger (VGT)
The variable-geometry turbo can stick from soot and heat, causing underboost, hunting, and actuator codes. Diagnose the actuator vs the vanes before replacing. Full guide: 6.7L Power Stroke turbo problems.
EGR cooler
The EGR cooler can crack (coolant loss, white smoke, overheating) or plug with soot. A quality replacement on a clean cooling system restores a sealed setup. Full guide: 6.7L Power Stroke EGR cooler failure.
Keep it healthy
Fresh fuel filters, quality oil on schedule, reasonable EGTs, and prompt attention to coolant and fuel condition keep the 6.7L Power Stroke reliable.
Frequently asked questions
Is the 6.7L Power Stroke reliable?
Yes, with maintenance. The fuel system (CP4.2) is the item to protect with clean, well-lubricated fuel.
What is the CP4 problem?
The CP4.2 pump can fail and send metal through the fuel system. Prevention centers on fuel quality and steady supply.
The 6.7L Power Stroke is a strong truck. Protect the fuel system, control soot and heat on the turbo and EGR, and use the guides above when an issue appears.
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